[openssh-commits] [openssh] branch master updated (c9f7bba2 -> 4bdf7a04)

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dtucker pushed a change to branch master
in repository openssh.

      from  c9f7bba2  Move closefrom() to before first malloc.
       new  4bdf7a04  upstream: Replace SIGCHLD/notify_pipe kludge with pselect.

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commit 4bdf7a04797a0ea1c431a9d54588417c29177d19
Author: dtucker at openbsd.org <dtucker at openbsd.org>
Date:   Fri Jun 25 03:38:17 2021 +0000

    upstream: Replace SIGCHLD/notify_pipe kludge with pselect.
    
    Previously sshd's SIGCHLD handler would wake up select() by writing a
    byte to notify_pipe.  We can remove this by blocking SIGCHLD, checking
    for child terminations then passing the original signal mask through
    to pselect.  This ensures that the pselect will immediately wake up if
    a child terminates between wait()ing on them and the pselect.
    
    In -portable, for platforms that do not have pselect the kludge is still
    there but is hidden behind a pselect interface.
    
    Based on other changes for bz#2158, ok djm@
    
    OpenBSD-Commit-ID: 202c85de0b3bdf1744fe53529a05404c5480d813

Summary of changes:
 serverloop.c | 108 ++++++++++++++++-------------------------------------------
 1 file changed, 28 insertions(+), 80 deletions(-)

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